Your shasta daisies were probably forced for spring-seasonal sales. These are typically late summer bloomers. Read above. By “return every spring” that means sprout. They would mature and flower later in season. As you can imagine, their seasonal cycle went haywire when they bloomed for spring. You can try to correct that, but it might take a year or two. Retrieve the plants from the compost (if the roots are intact) and put them into the ground or in a pot. Water them normally, not daily. Plants, unlike people, do not need constant hydration in hot conditions. Please understand that there is no guarantee that these plants will come back but you will never know if you do not try. (You can also purchase a new plant, one that is/was not forced.) We hope this helps.
Your shasta daisies were probably forced for spring-seasonal sales. These are typically late summer bloomers. Read above. By “return every spring” that means sprout. They would mature and flower later in season. As you can imagine, their seasonal cycle went haywire when they bloomed for spring. You can try to correct that, but it might take a year or two. Retrieve the plants from the compost (if the roots are intact) and put them into the ground or in a pot. Water them normally, not daily. Plants, unlike people, do not need constant hydration in hot conditions. Please understand that there is no guarantee that these plants will come back but you will never know if you do not try. (You can also purchase a new plant, one that is/was not forced.) We hope this helps.